Alarm-clock.



A. Y. JANSETL ALARM GLOGK.

APPLICATION FILED AUG. 31, 1909.

Patented July 12, 1910.

6 2 2 2 LF v k 1 2 SHEETS-SHEET l.

A. Y. JANSER ALARM CLOCK.

APPLIOATIGE FILED 5116.31, 1909.

Patented July 12, 1910.

2 SHEETSSHBE-T 2.

AUGUSTA Y. JANSEN', OF CHICAGO, ILLINOIS.

ALARM-CLOCK.

Specification of Letters Patent.

Patented July 12, 1910.

Application filed August 31, 1909. Serial No. 515,488.

To all whom it may concern:

Be it known that I, AUGUSTA Y. JANsnN,

a citizen of the United States, residing at' ful Improvements inAlarm-Clocks; and I do hereby declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same. 0

This invention relates to improvements in alarm clocks, and particularlyto electrical alarm clocks.

The invention consists in the construction and arrangement of parts, aswill be hereafter described and particularly pointed out in the claims.

In the accompanying drawings: Figure 1 is a front elevation of anembodiment of the invention. Fig. 2 is a longitudinal vertical sectionthrough the battery holding casing, the clock being broken away. Fig. 3is an enlarged detail fragmentary View of part of the alarm mechanism ofa clock and electrical contact member operated thereby. Fig. 1 is asection through Fig. 1 approximately on line M. Fig. 5 1s adiagrammatical View of the invention in which the circuits are shown. I

In constructing an alarm device embodying the invention, an ordinaryclock is provided having an alarm mechanism of any desired kind, butwith the alarm bell and hammer removed. In place of the alarm bell andhammer is arranged means for making and breaking an electrical circuitwhen the clock has moved to the time set for the alarm to be rung. Theelectrical circuit includes an alarm, as for instance a bell, togetherwith a source of current, so that when the alarm mechanism of the clockcloses the switch the source of current will cause the bell to besounded until the circuit has been manually opened by a second switch.In connection with the alarm mechanism set forth, a light is providedwhich is connected with the same source of current as the alarmmechanism and designed to be connected by a suitable push button whichis connected therewith and with the same source of current as the alarmmechanism, so that the face of the clock may be seen at night at anytime and without molesting the alarm part of the device.

In order that the invention may be more clearly understood an embodimentof the same is shown inthe accompanying drawings, in which- 1 indicatesa clock of any desired kind having an alarm mechanism 2 (Fig. 3). Thealarm mechanism 2 is provided with the usual shaft 3 and a pointer 4:,which appears on the face of the clock. A spring 5 is provided whichengages a lug 6 secured to shaft 3 for yieldingly holding shaft 3correctly in position, and for yieldingly preventing any longitudinalmovement thereof in one direction, a stop 7 being provided forpreventing movement in the opposite direction. Shaft 3 carries theusual. gear wheel 8 in mesh withthe clock mechanism for being rotatedthereby. Rigidly secured to gear wheel 8 is a cam 9 formed with abeveled cam surface 10 and an onset portion 11. Rigidly secured to shaft3 is a lug 12 designed to be positioned upon the upper surface of cam 9and to move over offset portion 11 when it is desired to cause switch 13to make contact with the framework 14: of the clock. Secured toframework It is a spring member 15 formed with an extension 16 which isdesigned to pass through an aperture 17 in framework 14 for engaging aninsulating strip 18 secured to switch 13 for moving the switch out ofcontact with framework 142. Spring member 15 normally bears against gearwheel 8 and holds the same some distance from framework 14, and alsoholds extension 16 out of contact with insulation 18.

When it is desired to set the alarm'mechanism to any desired hour thethumb member a is rotated until the hand or pointer 4C is moved toindicate the proper-hour. Upon the rotation of thumb member a, which isrigidly secured to shaft 3, lug 12 will be rotated and moved up inclinedportion 10 to the upper surface of cam 9, or rather the cam 9 will bemoved toward framework 1 1 by the rotation of lug 12. This will causegear wheel 8 to depress spring 15, and cause extension 16 to pressagainst insulation 18 and raise switch 13 from contact with framework 11, switch 13 being formed of spring metal will yieldingly resist suchmovement and will immediately return to its original position in contactwith framework l-lupon the raising of extension 16. Upon the rotation ofcam 9 switch 13 will be moved out of contact with framework 14, andwill. be held out of contact until the clock work of clock 1 has movedwheel 8, and consequently cam 9 sufiiciently for permitting cam. 9, and

into contact with framework 14 for closingthe circuit, hereinafter morefully described, whereby an alarm is sounded.

Clock 1 is secured to a housing 19 in which a suitable battery or sourceof electricity 2O is positioned. Housing 19 is preferably formed ofmetal and nicely finished for giving a pleasing appearance, and providedwith end members 21 and 22 that are held in position by friction, sothat the same may be removed at any time for renewing or inspecting thebattery and connections located in housing 19. End member 21 ispreferably provided with insulating strips 23 and 24 (Fig. 2) forpreventing any possible short circuiting of the leads of the battery.Housing 19 is also provided with supporting members 25 and 26 formed ofsome insulating material, preferably rubber, which acts as supports orfeet for the housing, and as an insulation. Housing 19 is provided witha plurality of bracing and battery supporting members 27, each of whichis formed with notches 28 and 31 (Fig. 4) for accommodating the variousconnecting wires. Members 27 are designed to-support the battery 20properly in position so that the leads therefrom will be out of contactwith the housing. The lead 32 (Fig. 5) from the battery is connectedwith windings 33 which actuate the hammer 34 for sounding bell 35. Thewindings or spools 33 are connected with a make and break 36 and fromthence through the vibrating arm 37 to housing 19, upon which,

the same is grounded. A second lead 32 extends from binding post 38 tothe bottom of socket 39 for contacting with lamp 40. Current passingfrom binding post 38 will travel through lead 32', lamp 40, from lamp 40out the sides of the securing member 41 in the usual manner to a socket42, which is insulated from housing 19. From socket 42 a wire 43 extendsto push button 44. When push button 44 is closed current will travelfrom thence through wire 45 to socket 46 which is insulated from housing19. From socket 46 current is lead through wire -47 back to binding post48 of battery 20, thus completing the circuit of the lamp 40.'

convenient or desired place so that whenever desired lamp 40 may belighted by simply pressing button 44. g

. Connected with binding post 48, which is preferably the positive sideof the battery,

spring switch 13; By this arrangement current is supplied for completingthe circuit for ringing bell 35 when switch 13 is against framework 14,as framework 14 is grounded on housing 19. Beginnin with binding post 48current will trave through wire 49, switch 50, contact member 51, wire52, switch 13, framework 14, the housing of clock 1, housing 19,vibrating member 35, make and break 36, windings 33, lead 32, and fromthence to binding post 38. From the tracing of this circuit it will beobserved that whenever the alarm mechanism 2 permits switch 13 tocontact withframework l4 bell 35 will ring until switch arm 50 has beenopened, or until switch 13 has been opened by the rotation of shaft 3.

Arranged in proximity to sockets 42 and 46 is a third socket 53 which isgrounded on housing 19.

When it is desired to use the bell 35 as a call bell the end of wire 43is inserted into socket 53 and push button 44 pressed. This will causecurrent from battery 20 to travel through wire 47 socket 48, wire. 45,push button 44, wire 43, to socket 53, which is grounded on housing 19.From housing 19 current will pass through vibrating member 37, make andbreak 36, windings 33, and from thence through wire 32 to binding post38. By thus changing the wire 43 either'the light 40 may be used or bell35, and in either case without disturbing the action of the alarmmechanism of the clock or the sounding of the bell 35 when switch 13 hasbeen permitted to contact with framework 14.

What I claim is:

1. In a device of the character described, a clock provided with analarm mechanism, an electrical switch operated by said alarm mechanism,a source of current, a circuit including said switch and source ofcurrent, an alarm device including said circuit adapted to be operatedupon the closing of said switch, a second jcircuit including part ofsaid first mentioned circuit and said source of current, a lampinterposed in said second circuit, and manually operated means forclosing said second circuit.

2. In a device of the character described, a clock formed with an alarmmechanism, an electrical switch connected with said clock but insulatedtherefrom arranged to.

ing the end normally in contact therewith out of contact, said meansbeing in engagement with said alarm mechanism and operated thereby forpermitting contact between said switch and said clock, a source ofcurrent, a'circuit including said source of cur- 1 rent, said clock, andsaid switch, an elec- 'trically operated alarm interposed in saidcircuit adapted to be operated while said switch is in contact with saidclock, and means for manually openin said circuit.

In testimony whereof I a X my signature in presence of two Witnesses.

AUGUSTA Y. JANSEN. Witnesses:

E. J. HEILMAN, WALTER H. PUscHncK.

